How to use XP system startup management to solve Vista, XP dual system

How do we go slant, use XP system startup management to get Vista, XP dual system, now for everyone to find a way to achieve XP, Vista dual system coexistence, the reality is Very reasonable. Vista home suggested that you can learn from it, here directly into the topic of this article:
One, dual system introduction
1, features
this dual system XP, Vista are independent, do not affect each other, each Installed in a primary partition
boot process is, bois--mbr--ntldr--here choose to boot to XP or Vista, which means to start Vista with XP through boot.ini, Vista is too troublesome to start XP Say goodbye to bootmgr.
2, disk tool 1: backup mbr software
debug under dos, XP, Vista winhex 13.7 SR7, db under linux (save mbr has many tools)
3, disk tools 2: Partitioning Tools
can change the partitioning software of the active partition (there are many). In fact, in the disk management of XP and Vista, you can change the active partition, right click on the primary partition - mark the disk partition as active.
4, system installation order
Any, first XP after Vista, Vista after XP can be
Second, how to partition the hard disk partition
2 main partitions, one install XP, one install Vista, most Ok, put the XP partition in front, because the multi(0)disk(0)rdisk(0)partition(1) in boot.ini should record the partition order.
The following description is taken according to the scheme
three How to install the system
a. First install XP and then install Vista
1, activate the first partition, install XP
2, save mbr as mbr.1
3, activate the second master Partition, then install Vista